Homebrew OPEN_AGB_FIRM discussion thread

[Mizuuugi]

Well, in that case, I have no clue at all what's up. Does anyone else have the same problems? If not, maybe their 3DS really is going bad.

dont worry about it, i appreciate you trying to help me lol, ive been thinking about getting the dragon quest 2ds since ive been wanting it for a while so maybe ill just oder that and pray that it doesnt have the same problems because i am at my wits end here

Post automatically merged: Sep 27, 2023

dont worry about it, i appreciate you trying to help me lol, ive been thinking about getting the dragon quest 2ds since ive been wanting it for a while so maybe ill just oder that and pray that it doesnt have the same problems because i am at my wits end here

oh btw i tried using injects of gba games. didnt change anything

 

[Mizuuugi]

So i thought maybe dumping the bios of the og GBA somewhere could maybe fix the issue, Though i have no idea where to put them and what i need to do, if anyone has any idea id be glad to hear

 

[ghjfdtg]

The BIOS is already baked into the hardware. It won't make a difference but you can disable direct boot in the config.ini file unless you already get the GBA BIOS intro.

 

[Mizuuugi]

The BIOS is already baked into the hardware. It won't make a difference but you can disable direct boot in the config.ini file unless you already get the GBA BIOS intro.

and if i get the gameboy intro?

Post automatically merged: Oct 1, 2023

https://glazedbelmont.github.io/gbabiosdump/ so i basically followed this tutroial and got the last file but im not sure where to put it or how to check the hashes
again not sure if this will change anything but i thought it was worth a shot

 

[Rya687]

and if i get the gameboy intro?

Post automatically merged: Oct 1, 2023

https://glazedbelmont.github.io/gbabiosdump/ so i basically followed this tutroial and got the last file but im not sure where to put it or how to check the hashes
again not sure if this will change anything but i thought it was worth a shot

There really is no point in obtaining the GBA's BIOS. Like ghjfdtg said, it already exists on the 3DS' hardware and is being used. I don't know if AGB_FIRM even supports loading the BIOS from an external file. And even if it did, the only reason to use that feature would be if you wanted to use a modded BIOS for some reason.

 

[september796]

how can I convert a savefile made with open_agb_firm to a format that mgba (RA) can read?

 

[Rya687]

how can I convert a savefile made with open_agb_firm to a format that mgba (RA) can read?

That's explained by the readme. Most GBA emulators use an incorrect save format. To convert saves between the real format and this incorrect one, you can use this tool: https://exelotl.github.io/gba-eeprom-save-fix/

 

[september796]

That's explained by the readme. Most GBA emulators use an incorrect save format. To convert saves between the real format and this incorrect one, you can use this tool: https://exelotl.github.io/gba-eeprom-save-fix/

Unfortunately that doesn't work with mgba. It will read it as a blank file.

 

[DSoryu]

and if i get the gameboy intro?

Post automatically merged: Oct 1, 2023

https://glazedbelmont.github.io/gbabiosdump/ so i basically followed this tutroial and got the last file but im not sure where to put it or how to check the hashes
again not sure if this will change anything but i thought it was worth a shot

Maybe I'm late to the party (I had problems to access to my account here for some reason) but I was talking with the main dev about your issues and all points that your FCRAM may be damaged/faulty.

open_agb_firm is NOT by any means an emulator, it runs on real GBA hardware, so your situation must be related to a hardware issue. It uses the FCRAM chip as a cartridge emulator, see it as a "virtual flashcard" so any issues or physical damage to it will cause problems,

For example, I had issues with Mega Man & Bass on my New3DS XL because it wasn't drawing some BG effects, and I managed to solve it by opening my console and reflowing the FCRAM chip, so maybe doing this will fix your current issues.

EDIT: profi200 opened a poll on the project's repo, the more answers he gets, the more closer we will get GBA Colorspace Correction implemented in official releases. Go leave your answer here:

https://github.com/profi200/open_agb_firm/discussions/135#discussioncomment-7278080

for those who don't know, colorspace correction is already working but needs input lag tests, and some beta testers already have it, it gives results similar to these:

 

[anod221]

Hello! For creating the border.bgr, which using in no scaling, I deployed a page in cloudflare. Using this page, you can easily get your own border online.
Link: oaftool.anod.cc/border/?en

 

[Mizuuugi]

So i have a save file for a rom i have, but for some reason everytime i start it up it starts up like theres no save.
the file names match and theyre in the same folder, any ideas?

 

[Maeson]

You might need to convert the save file.

Here's more information, and a tool you can try:

https://github.com/profi200/open_agb_firm/issues/43

But I warn you, the sav file you have on the open_agb_folder might have been wiped already. When a save file is not correct for the emulator, or software running the game, it tends to be replaced with a new one, so I hope you had a backup.

 

[Mizuuugi]

You might need to convert the save file.

Here's more information, and a tool you can try:

https://github.com/profi200/open_agb_firm/issues/43

But I warn you, the sav file you have on the open_agb_folder might have been wiped already. When a save file is not correct for the emulator, or software running the game, it tends to be replaced with a new one, so I hope you had a backup.

Thankfully i have a backup, ill try the convertor
Thanks a bunch <33

Post automatically merged: Nov 6, 2023

You might need to convert the save file.

Here's more information, and a tool you can try:

https://github.com/profi200/open_agb_firm/issues/43

But I warn you, the sav file you have on the open_agb_folder might have been wiped already. When a save file is not correct for the emulator, or software running the game, it tends to be replaced with a new one, so I hope you had a backup.

sorry for being a little bit of a dummy but how do i use that? i just see lines of text and no where to upload a file or something

 

[Maeson]

Sorry, the link I provided didn't get you to where I was thinking.

Here:
https://exelotl.github.io/gba-eeprom-save-fix/

 

[Mizuuugi]

Sorry, the link I provided didn't get you to where I was thinking.

Here:
https://exelotl.github.io/gba-eeprom-save-fix/

That helps tyy

Post automatically merged: Nov 6, 2023

Sorry, the link I provided didn't get you to where I was thinking.

Here:
https://exelotl.github.io/gba-eeprom-save-fix/

ok it did not work

 

[Sweater Fish Del]

So i have a save file for a rom i have, but for some reason everytime i start it up it starts up like theres no save.
the file names match and theyre in the same folder, any ideas?

Saves should go in /3ds/open_agb_firm/saves, not the ROM folder.

 

[Ridley12]

I tried using this to play a ROM hack of FireRed, but the screen froze at the Game Boy animation (like it would on a real GBA, as I've learned.)

Assuming this only happens with ROM hacks and the like, is there a setting I can change to allow hacks to play?

 

[AleronIves]

OAF is using the real GBA hardware inside your 3DS. It's not an emulator. If a hack is so sloppy that it won't run on a real GBA, it won't run on OAF, either. You'll have to use an emulator or play a better hack that works on real hardware.

 

[DSoryu]

I tried using this to play a ROM hack of FireRed, but the screen froze at the Game Boy animation (like it would on a real GBA, as I've learned.)

Assuming this only happens with ROM hacks and the like, is there a setting I can change to allow hacks to play?

That sounds as a corrupted header issue (It still baffles me why rom hackers don't bother to fix something really easy to do).
You can fix the header by yourself by checking that everything is correct using a HEX editor and the documentation here, or use GBATA which usually can do it for you most of the times (not always).

Another option would be to set open_agb_firm to skip the BIOS intro. According to the readme:

bool directBoot - Skip GBA BIOS intro at game startup

• Default: false

But if that rom hack was made for VBA, don't expect it to fully work on real hardware, it could crash at some point.

 

[WizardWell]

What's the latest release for this? Is it on the GitHub? I'm curious if they could ever implement a sleep mode.